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Finding the Fourth Proportional to 418,354.88, 577,329.73 and 227,368.72

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Solution

The fourth proportional to 418,354.88, 577,329.73 and 227,368.72 is: 313,768.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,354.88 : 577,329.73 = 227,368.72 : x
  2. Step 2: Convert to fraction form
    418,354.88/577,329.73 = 227,368.72/x
  3. Step 3: Cross multiply
    418,354.88x = 577,329.73 × 227,368.72
  4. Step 4: Simplify right side
    418,354.88x = 131,266,721,881.29
  5. Step 5: Solve for x
    x = 131,266,721,881.29/418,354.88
  6. Step 6: Final answer
    x = 313,768.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.